<template>
  <div class="update-name">
      <!-- 导航栏 -->
        <van-nav-bar
          title="设置昵称"
          left-text="取消"
          right-text="确定"
          @click-left="$emit('close')" 
          @click-right="onConfirm"
          />
        <!-- /导航栏 -->

        <!-- 定义输入框基本结构 -->
        <div class="field-wrap">
            <van-field
            v-model="localName"
            rows="2"
            autosize
            type="textarea"
            maxlength="7"
            placeholder="请输入新昵称"
            show-word-limit
            />
        </div>
  </div>
</template>

<script>
import {updateUserdata} from '@/api/user'
export default {
  // 组件名称
  name: 'UpdateName',
  // 局部注册的组件
  components: {},
  // 组件参数 接收来自父组件的数据
  props: {
      value:{
          type: String,
          required: true
      }
  },
  // 组件状态值
  data () {
    return {
        message:'',
        localName: this.value
    }
  },
  // 计算属性
  computed: {},
  // 侦听器
  watch: {},
  created () { },
  mounted () { },
  // 组件方法
  methods: {
      async onConfirm(){
          this.$toast.loading({
              message: '保存中',
              forbidClick:true,
              duration:0
          })
          try {
            const localName = this.localName
            if(!localName.length) {
                return this.$toast('昵称不能为空')
            }
            await updateUserdata({
                name:localName
            })

            // 更新视图
            this.$emit('input',localName)
            // 关闭弹层
            this.$emit('close')
            // 提示成功
            this.$toast.success('更新成功')
          }catch (err) {
              console.log(err);
              this.$toast.fail('更新失败')
          }
      }
  }
}
</script>

<style scoped lang="less">
.field-wrap {
  padding: 20px;
}
</style>